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Finding the Fourth Proportional to 153,430.70, 230,146.05 and 48,281.90

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Solution

The fourth proportional to 153,430.70, 230,146.05 and 48,281.90 is: 72,422.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,430.70 : 230,146.05 = 48,281.90 : x
  2. Step 2: Convert to fraction form
    153,430.70/230,146.05 = 48,281.90/x
  3. Step 3: Cross multiply
    153,430.70x = 230,146.05 × 48,281.90
  4. Step 4: Simplify right side
    153,430.70x = 11,111,888,571.50
  5. Step 5: Solve for x
    x = 11,111,888,571.50/153,430.70
  6. Step 6: Final answer
    x = 72,422.85

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.