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Finding the Fourth Proportional to 342,347.53, 472,280.40 and 221,527.86

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Solution

The fourth proportional to 342,347.53, 472,280.40 and 221,527.86 is: 305,605.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,347.53 : 472,280.40 = 221,527.86 : x
  2. Step 2: Convert to fraction form
    342,347.53/472,280.40 = 221,527.86/x
  3. Step 3: Cross multiply
    342,347.53x = 472,280.40 × 221,527.86
  4. Step 4: Simplify right side
    342,347.53x = 104,623,266,331.94
  5. Step 5: Solve for x
    x = 104,623,266,331.94/342,347.53
  6. Step 6: Final answer
    x = 305,605.44

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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.