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Finding the Fourth Proportional to 342,347.59, 472,280.49 and 221,527.93

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Solution

The fourth proportional to 342,347.59, 472,280.49 and 221,527.93 is: 305,605.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,347.59 : 472,280.49 = 221,527.93 : x
  2. Step 2: Convert to fraction form
    342,347.59/472,280.49 = 221,527.93/x
  3. Step 3: Cross multiply
    342,347.59x = 472,280.49 × 221,527.93
  4. Step 4: Simplify right side
    342,347.59x = 104,623,315,860.04
  5. Step 5: Solve for x
    x = 104,623,315,860.04/342,347.59
  6. Step 6: Final answer
    x = 305,605.53

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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.