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Finding the Fourth Proportional to 346,711.70, 520,067.56 and 307,345.70

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Solution

The fourth proportional to 346,711.70, 520,067.56 and 307,345.70 is: 461,018.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,711.70 : 520,067.56 = 307,345.70 : x
  2. Step 2: Convert to fraction form
    346,711.70/520,067.56 = 307,345.70/x
  3. Step 3: Cross multiply
    346,711.70x = 520,067.56 × 307,345.70
  4. Step 4: Simplify right side
    346,711.70x = 159,840,528,275.49
  5. Step 5: Solve for x
    x = 159,840,528,275.49/346,711.70
  6. Step 6: Final answer
    x = 461,018.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.