Home / 434,321.60-651,547.20-153,816.80

Finding the Fourth Proportional to 434,321.60, 651,547.20 and 153,816.80

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Solution

The fourth proportional to 434,321.60, 651,547.20 and 153,816.80 is: 230,748.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,321.60 : 651,547.20 = 153,816.80 : x
  2. Step 2: Convert to fraction form
    434,321.60/651,547.20 = 153,816.80/x
  3. Step 3: Cross multiply
    434,321.60x = 651,547.20 × 153,816.80
  4. Step 4: Simplify right side
    434,321.60x = 100,218,905,352.96
  5. Step 5: Solve for x
    x = 100,218,905,352.96/434,321.60
  6. Step 6: Final answer
    x = 230,748.15

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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.