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Finding the Fourth Proportional to 342,030.76, 472,001.70 and 191,127.76

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Solution

The fourth proportional to 342,030.76, 472,001.70 and 191,127.76 is: 263,755.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,030.76 : 472,001.70 = 191,127.76 : x
  2. Step 2: Convert to fraction form
    342,030.76/472,001.70 = 191,127.76/x
  3. Step 3: Cross multiply
    342,030.76x = 472,001.70 × 191,127.76
  4. Step 4: Simplify right side
    342,030.76x = 90,212,627,637.19
  5. Step 5: Solve for x
    x = 90,212,627,637.19/342,030.76
  6. Step 6: Final answer
    x = 263,755.89

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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.