Home / 369,427.69-509,227.21-272,320.23

Finding the Fourth Proportional to 369,427.69, 509,227.21 and 272,320.23

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Solution

The fourth proportional to 369,427.69, 509,227.21 and 272,320.23 is: 375,372.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,427.69 : 509,227.21 = 272,320.23 : x
  2. Step 2: Convert to fraction form
    369,427.69/509,227.21 = 272,320.23/x
  3. Step 3: Cross multiply
    369,427.69x = 509,227.21 × 272,320.23
  4. Step 4: Simplify right side
    369,427.69x = 138,672,869,587.86
  5. Step 5: Solve for x
    x = 138,672,869,587.86/369,427.69
  6. Step 6: Final answer
    x = 375,372.16

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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.