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Finding the Fourth Proportional to 262,403.70, 393,605.55 and 240,630.90

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Solution

The fourth proportional to 262,403.70, 393,605.55 and 240,630.90 is: 360,946.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,403.70 : 393,605.55 = 240,630.90 : x
  2. Step 2: Convert to fraction form
    262,403.70/393,605.55 = 240,630.90/x
  3. Step 3: Cross multiply
    262,403.70x = 393,605.55 × 240,630.90
  4. Step 4: Simplify right side
    262,403.70x = 94,713,657,741.50
  5. Step 5: Solve for x
    x = 94,713,657,741.50/262,403.70
  6. Step 6: Final answer
    x = 360,946.35

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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.