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Finding the Fourth Proportional to 304,967.76, 420,806.52 and 191,710.32

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Solution

The fourth proportional to 304,967.76, 420,806.52 and 191,710.32 is: 264,529.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,967.76 : 420,806.52 = 191,710.32 : x
  2. Step 2: Convert to fraction form
    304,967.76/420,806.52 = 191,710.32/x
  3. Step 3: Cross multiply
    304,967.76x = 420,806.52 × 191,710.32
  4. Step 4: Simplify right side
    304,967.76x = 80,672,952,607.29
  5. Step 5: Solve for x
    x = 80,672,952,607.29/304,967.76
  6. Step 6: Final answer
    x = 264,529.45

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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.