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Finding the Fourth Proportional to 153,330, 229,995 and 42,522

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Solution

The fourth proportional to 153,330, 229,995 and 42,522 is: 63,783

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,330 : 229,995 = 42,522 : x
  2. Step 2: Convert to fraction form
    153,330/229,995 = 42,522/x
  3. Step 3: Cross multiply
    153,330x = 229,995 × 42,522
  4. Step 4: Simplify right side
    153,330x = 9,779,847,390
  5. Step 5: Solve for x
    x = 9,779,847,390/153,330
  6. Step 6: Final answer
    x = 63,783

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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.