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Finding the Fourth Proportional to 487,018.84, 672,073.59 and 272,160.67

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Solution

The fourth proportional to 487,018.84, 672,073.59 and 272,160.67 is: 375,574.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,018.84 : 672,073.59 = 272,160.67 : x
  2. Step 2: Convert to fraction form
    487,018.84/672,073.59 = 272,160.67/x
  3. Step 3: Cross multiply
    487,018.84x = 672,073.59 × 272,160.67
  4. Step 4: Simplify right side
    487,018.84x = 182,911,998,543.71
  5. Step 5: Solve for x
    x = 182,911,998,543.71/487,018.84
  6. Step 6: Final answer
    x = 375,574.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.