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Finding the Fourth Proportional to 288,458.40, 398,066.76 and 175,317.60

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Solution

The fourth proportional to 288,458.40, 398,066.76 and 175,317.60 is: 241,934.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,458.40 : 398,066.76 = 175,317.60 : x
  2. Step 2: Convert to fraction form
    288,458.40/398,066.76 = 175,317.60/x
  3. Step 3: Cross multiply
    288,458.40x = 398,066.76 × 175,317.60
  4. Step 4: Simplify right side
    288,458.40x = 69,788,109,002.98
  5. Step 5: Solve for x
    x = 69,788,109,002.98/288,458.40
  6. Step 6: Final answer
    x = 241,934.74

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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.