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Finding the Fourth Proportional to 153,429.70, 230,144.55 and 48,280.90

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Solution

The fourth proportional to 153,429.70, 230,144.55 and 48,280.90 is: 72,421.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,429.70 : 230,144.55 = 48,280.90 : x
  2. Step 2: Convert to fraction form
    153,429.70/230,144.55 = 48,280.90/x
  3. Step 3: Cross multiply
    153,429.70x = 230,144.55 × 48,280.90
  4. Step 4: Simplify right side
    153,429.70x = 11,111,586,004.10
  5. Step 5: Solve for x
    x = 11,111,586,004.10/153,429.70
  6. Step 6: Final answer
    x = 72,421.35

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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.