Home / 288,526.20-397,907.28-240,287.46

Finding the Fourth Proportional to 288,526.20, 397,907.28 and 240,287.46

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Solution

The fourth proportional to 288,526.20, 397,907.28 and 240,287.46 is: 331,381.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,526.20 : 397,907.28 = 240,287.46 : x
  2. Step 2: Convert to fraction form
    288,526.20/397,907.28 = 240,287.46/x
  3. Step 3: Cross multiply
    288,526.20x = 397,907.28 × 240,287.46
  4. Step 4: Simplify right side
    288,526.20x = 95,612,129,626.71
  5. Step 5: Solve for x
    x = 95,612,129,626.71/288,526.20
  6. Step 6: Final answer
    x = 331,381.10

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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.