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Finding the Fourth Proportional to 554,510.50, 831,638.58 and 155,179.28

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Solution

The fourth proportional to 554,510.50, 831,638.58 and 155,179.28 is: 232,733.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,510.50 : 831,638.58 = 155,179.28 : x
  2. Step 2: Convert to fraction form
    554,510.50/831,638.58 = 155,179.28/x
  3. Step 3: Cross multiply
    554,510.50x = 831,638.58 × 155,179.28
  4. Step 4: Simplify right side
    554,510.50x = 129,053,077,561.80
  5. Step 5: Solve for x
    x = 129,053,077,561.80/554,510.50
  6. Step 6: Final answer
    x = 232,733.34

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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.