Home / 285,088.92-393,417.18-157,762.20

Finding the Fourth Proportional to 285,088.92, 393,417.18 and 157,762.20

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Solution

The fourth proportional to 285,088.92, 393,417.18 and 157,762.20 is: 217,708.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,088.92 : 393,417.18 = 157,762.20 : x
  2. Step 2: Convert to fraction form
    285,088.92/393,417.18 = 157,762.20/x
  3. Step 3: Cross multiply
    285,088.92x = 393,417.18 × 157,762.20
  4. Step 4: Simplify right side
    285,088.92x = 62,066,359,834.60
  5. Step 5: Solve for x
    x = 62,066,359,834.60/285,088.92
  6. Step 6: Final answer
    x = 217,708.78

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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.