Home / 459,302.40-688,975.20-143,769.60

Finding the Fourth Proportional to 459,302.40, 688,975.20 and 143,769.60

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Solution

The fourth proportional to 459,302.40, 688,975.20 and 143,769.60 is: 215,661.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,302.40 : 688,975.20 = 143,769.60 : x
  2. Step 2: Convert to fraction form
    459,302.40/688,975.20 = 143,769.60/x
  3. Step 3: Cross multiply
    459,302.40x = 688,975.20 × 143,769.60
  4. Step 4: Simplify right side
    459,302.40x = 99,053,688,913.92
  5. Step 5: Solve for x
    x = 99,053,688,913.92/459,302.40
  6. Step 6: Final answer
    x = 215,661.16

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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.