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Finding the Fourth Proportional to 342,486, 472,630.76 and 191,582.96

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Solution

The fourth proportional to 342,486, 472,630.76 and 191,582.96 is: 264,384.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,486 : 472,630.76 = 191,582.96 : x
  2. Step 2: Convert to fraction form
    342,486/472,630.76 = 191,582.96/x
  3. Step 3: Cross multiply
    342,486x = 472,630.76 × 191,582.96
  4. Step 4: Simplify right side
    342,486x = 90,547,999,987.85
  5. Step 5: Solve for x
    x = 90,547,999,987.85/342,486
  6. Step 6: Final answer
    x = 264,384.53

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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.