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Finding the Fourth Proportional to 155,459.80, 233,189.70 and 145,091.80

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Solution

The fourth proportional to 155,459.80, 233,189.70 and 145,091.80 is: 217,637.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,459.80 : 233,189.70 = 145,091.80 : x
  2. Step 2: Convert to fraction form
    155,459.80/233,189.70 = 145,091.80/x
  3. Step 3: Cross multiply
    155,459.80x = 233,189.70 × 145,091.80
  4. Step 4: Simplify right side
    155,459.80x = 33,833,913,314.46
  5. Step 5: Solve for x
    x = 33,833,913,314.46/155,459.80
  6. Step 6: Final answer
    x = 217,637.70

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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.