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Finding the Fourth Proportional to 459,165.54, 688,798.55 and 155,778.76

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Solution

The fourth proportional to 459,165.54, 688,798.55 and 155,778.76 is: 233,685.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,165.54 : 688,798.55 = 155,778.76 : x
  2. Step 2: Convert to fraction form
    459,165.54/688,798.55 = 155,778.76/x
  3. Step 3: Cross multiply
    459,165.54x = 688,798.55 × 155,778.76
  4. Step 4: Simplify right side
    459,165.54x = 107,300,185,259.24
  5. Step 5: Solve for x
    x = 107,300,185,259.24/459,165.54
  6. Step 6: Final answer
    x = 233,685.19

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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.