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Finding the Fourth Proportional to 145,510.60, 218,265.90 and 98,854.60

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Solution

The fourth proportional to 145,510.60, 218,265.90 and 98,854.60 is: 148,281.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,510.60 : 218,265.90 = 98,854.60 : x
  2. Step 2: Convert to fraction form
    145,510.60/218,265.90 = 98,854.60/x
  3. Step 3: Cross multiply
    145,510.60x = 218,265.90 × 98,854.60
  4. Step 4: Simplify right side
    145,510.60x = 21,576,588,238.14
  5. Step 5: Solve for x
    x = 21,576,588,238.14/145,510.60
  6. Step 6: Final answer
    x = 148,281.90

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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.