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Finding the Fourth Proportional to 310,260.40, 428,169.48 and 174,318.52

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Solution

The fourth proportional to 310,260.40, 428,169.48 and 174,318.52 is: 240,565.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,260.40 : 428,169.48 = 174,318.52 : x
  2. Step 2: Convert to fraction form
    310,260.40/428,169.48 = 174,318.52/x
  3. Step 3: Cross multiply
    310,260.40x = 428,169.48 × 174,318.52
  4. Step 4: Simplify right side
    310,260.40x = 74,637,870,062.77
  5. Step 5: Solve for x
    x = 74,637,870,062.77/310,260.40
  6. Step 6: Final answer
    x = 240,565.25

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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.