Home / 284,481.48-392,582.10-157,154.40

Finding the Fourth Proportional to 284,481.48, 392,582.10 and 157,154.40

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Solution

The fourth proportional to 284,481.48, 392,582.10 and 157,154.40 is: 216,871.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,481.48 : 392,582.10 = 157,154.40 : x
  2. Step 2: Convert to fraction form
    284,481.48/392,582.10 = 157,154.40/x
  3. Step 3: Cross multiply
    284,481.48x = 392,582.10 × 157,154.40
  4. Step 4: Simplify right side
    284,481.48x = 61,696,004,376.24
  5. Step 5: Solve for x
    x = 61,696,004,376.24/284,481.48
  6. Step 6: Final answer
    x = 216,871.78

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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.