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Finding the Fourth Proportional to 359,017.60, 495,288.52 and 213,742.08

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Solution

The fourth proportional to 359,017.60, 495,288.52 and 213,742.08 is: 294,871.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,017.60 : 495,288.52 = 213,742.08 : x
  2. Step 2: Convert to fraction form
    359,017.60/495,288.52 = 213,742.08/x
  3. Step 3: Cross multiply
    359,017.60x = 495,288.52 × 213,742.08
  4. Step 4: Simplify right side
    359,017.60x = 105,863,998,464.92
  5. Step 5: Solve for x
    x = 105,863,998,464.92/359,017.60
  6. Step 6: Final answer
    x = 294,871.33

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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.