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Finding the Fourth Proportional to 153,323.64, 229,985.28 and 42,515.64

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Solution

The fourth proportional to 153,323.64, 229,985.28 and 42,515.64 is: 63,773.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,323.64 : 229,985.28 = 42,515.64 : x
  2. Step 2: Convert to fraction form
    153,323.64/229,985.28 = 42,515.64/x
  3. Step 3: Cross multiply
    153,323.64x = 229,985.28 × 42,515.64
  4. Step 4: Simplify right side
    153,323.64x = 9,777,971,369.78
  5. Step 5: Solve for x
    x = 9,777,971,369.78/153,323.64
  6. Step 6: Final answer
    x = 63,773.41

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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.