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Finding the Fourth Proportional to 330,547.95, 456,000.37 and 239,704.63

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Solution

The fourth proportional to 330,547.95, 456,000.37 and 239,704.63 is: 330,679.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,547.95 : 456,000.37 = 239,704.63 : x
  2. Step 2: Convert to fraction form
    330,547.95/456,000.37 = 239,704.63/x
  3. Step 3: Cross multiply
    330,547.95x = 456,000.37 × 239,704.63
  4. Step 4: Simplify right side
    330,547.95x = 109,305,399,970.71
  5. Step 5: Solve for x
    x = 109,305,399,970.71/330,547.95
  6. Step 6: Final answer
    x = 330,679.41

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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.