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Finding the Fourth Proportional to 255,411.68, 352,459.88 and 152,045.48

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Solution

The fourth proportional to 255,411.68, 352,459.88 and 152,045.48 is: 209,817.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,411.68 : 352,459.88 = 152,045.48 : x
  2. Step 2: Convert to fraction form
    255,411.68/352,459.88 = 152,045.48/x
  3. Step 3: Cross multiply
    255,411.68x = 352,459.88 × 152,045.48
  4. Step 4: Simplify right side
    255,411.68x = 53,589,931,635.34
  5. Step 5: Solve for x
    x = 53,589,931,635.34/255,411.68
  6. Step 6: Final answer
    x = 209,817.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.