Home / 358,981.40-538,472.10-288,997.40

Finding the Fourth Proportional to 358,981.40, 538,472.10 and 288,997.40

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Solution

The fourth proportional to 358,981.40, 538,472.10 and 288,997.40 is: 433,496.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,981.40 : 538,472.10 = 288,997.40 : x
  2. Step 2: Convert to fraction form
    358,981.40/538,472.10 = 288,997.40/x
  3. Step 3: Cross multiply
    358,981.40x = 538,472.10 × 288,997.40
  4. Step 4: Simplify right side
    358,981.40x = 155,617,036,872.54
  5. Step 5: Solve for x
    x = 155,617,036,872.54/358,981.40
  6. Step 6: Final answer
    x = 433,496.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.