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Finding the Fourth Proportional to 370,187.52, 510,859.04 and 200,421.76

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Solution

The fourth proportional to 370,187.52, 510,859.04 and 200,421.76 is: 276,582.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,187.52 : 510,859.04 = 200,421.76 : x
  2. Step 2: Convert to fraction form
    370,187.52/510,859.04 = 200,421.76/x
  3. Step 3: Cross multiply
    370,187.52x = 510,859.04 × 200,421.76
  4. Step 4: Simplify right side
    370,187.52x = 102,387,267,908.71
  5. Step 5: Solve for x
    x = 102,387,267,908.71/370,187.52
  6. Step 6: Final answer
    x = 276,582.17

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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.