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Finding the Fourth Proportional to 500,444.64, 750,689.40 and 163,505.88

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Solution

The fourth proportional to 500,444.64, 750,689.40 and 163,505.88 is: 245,266.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,444.64 : 750,689.40 = 163,505.88 : x
  2. Step 2: Convert to fraction form
    500,444.64/750,689.40 = 163,505.88/x
  3. Step 3: Cross multiply
    500,444.64x = 750,689.40 × 163,505.88
  4. Step 4: Simplify right side
    500,444.64x = 122,742,130,953.67
  5. Step 5: Solve for x
    x = 122,742,130,953.67/500,444.64
  6. Step 6: Final answer
    x = 245,266.15

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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.