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Finding the Fourth Proportional to 293,870.60, 440,417.10 and 260,433.80

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Solution

The fourth proportional to 293,870.60, 440,417.10 and 260,433.80 is: 390,306.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,870.60 : 440,417.10 = 260,433.80 : x
  2. Step 2: Convert to fraction form
    293,870.60/440,417.10 = 260,433.80/x
  3. Step 3: Cross multiply
    293,870.60x = 440,417.10 × 260,433.80
  4. Step 4: Simplify right side
    293,870.60x = 114,699,498,937.98
  5. Step 5: Solve for x
    x = 114,699,498,937.98/293,870.60
  6. Step 6: Final answer
    x = 390,306.14

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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.