Home / 288,600.03-432,970.12-88,920.42

Finding the Fourth Proportional to 288,600.03, 432,970.12 and 88,920.42

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Solution

The fourth proportional to 288,600.03, 432,970.12 and 88,920.42 is: 133,402.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,600.03 : 432,970.12 = 88,920.42 : x
  2. Step 2: Convert to fraction form
    288,600.03/432,970.12 = 88,920.42/x
  3. Step 3: Cross multiply
    288,600.03x = 432,970.12 × 88,920.42
  4. Step 4: Simplify right side
    288,600.03x = 38,499,883,405.36
  5. Step 5: Solve for x
    x = 38,499,883,405.36/288,600.03
  6. Step 6: Final answer
    x = 133,402.21

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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.