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Finding the Fourth Proportional to 153,444.78, 230,018.40 and 78,600.24

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Solution

The fourth proportional to 153,444.78, 230,018.40 and 78,600.24 is: 117,824.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,444.78 : 230,018.40 = 78,600.24 : x
  2. Step 2: Convert to fraction form
    153,444.78/230,018.40 = 78,600.24/x
  3. Step 3: Cross multiply
    153,444.78x = 230,018.40 × 78,600.24
  4. Step 4: Simplify right side
    153,444.78x = 18,079,501,444.42
  5. Step 5: Solve for x
    x = 18,079,501,444.42/153,444.78
  6. Step 6: Final answer
    x = 117,824.15

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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.