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Finding the Fourth Proportional to 458,800.28, 688,083.54 and 143,289.08

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Solution

The fourth proportional to 458,800.28, 688,083.54 and 143,289.08 is: 214,897.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,800.28 : 688,083.54 = 143,289.08 : x
  2. Step 2: Convert to fraction form
    458,800.28/688,083.54 = 143,289.08/x
  3. Step 3: Cross multiply
    458,800.28x = 688,083.54 × 143,289.08
  4. Step 4: Simplify right side
    458,800.28x = 98,594,857,409.74
  5. Step 5: Solve for x
    x = 98,594,857,409.74/458,800.28
  6. Step 6: Final answer
    x = 214,897.12

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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.