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Finding the Fourth Proportional to 342,378.54, 472,547.25 and 229,397.58

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Solution

The fourth proportional to 342,378.54, 472,547.25 and 229,397.58 is: 316,612.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,378.54 : 472,547.25 = 229,397.58 : x
  2. Step 2: Convert to fraction form
    342,378.54/472,547.25 = 229,397.58/x
  3. Step 3: Cross multiply
    342,378.54x = 472,547.25 × 229,397.58
  4. Step 4: Simplify right side
    342,378.54x = 108,401,195,585.66
  5. Step 5: Solve for x
    x = 108,401,195,585.66/342,378.54
  6. Step 6: Final answer
    x = 316,612.12

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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.