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Finding the Fourth Proportional to 545,507.16, 818,384.56 and 166,461.72

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Solution

The fourth proportional to 545,507.16, 818,384.56 and 166,461.72 is: 249,730.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,507.16 : 818,384.56 = 166,461.72 : x
  2. Step 2: Convert to fraction form
    545,507.16/818,384.56 = 166,461.72/x
  3. Step 3: Cross multiply
    545,507.16x = 818,384.56 × 166,461.72
  4. Step 4: Simplify right side
    545,507.16x = 136,229,701,479.04
  5. Step 5: Solve for x
    x = 136,229,701,479.04/545,507.16
  6. Step 6: Final answer
    x = 249,730.36

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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.