Home / 442,045.40-663,068.10-109,621.40

Finding the Fourth Proportional to 442,045.40, 663,068.10 and 109,621.40

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Solution

The fourth proportional to 442,045.40, 663,068.10 and 109,621.40 is: 164,432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,045.40 : 663,068.10 = 109,621.40 : x
  2. Step 2: Convert to fraction form
    442,045.40/663,068.10 = 109,621.40/x
  3. Step 3: Cross multiply
    442,045.40x = 663,068.10 × 109,621.40
  4. Step 4: Simplify right side
    442,045.40x = 72,686,453,417.34
  5. Step 5: Solve for x
    x = 72,686,453,417.34/442,045.40
  6. Step 6: Final answer
    x = 164,432.10

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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.