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Finding the Fourth Proportional to 145,574.93, 218,359.96 and 65,568.40

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Solution

The fourth proportional to 145,574.93, 218,359.96 and 65,568.40 is: 98,351.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,574.93 : 218,359.96 = 65,568.40 : x
  2. Step 2: Convert to fraction form
    145,574.93/218,359.96 = 65,568.40/x
  3. Step 3: Cross multiply
    145,574.93x = 218,359.96 × 65,568.40
  4. Step 4: Simplify right side
    145,574.93x = 14,317,513,201.26
  5. Step 5: Solve for x
    x = 14,317,513,201.26/145,574.93
  6. Step 6: Final answer
    x = 98,351.50

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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.