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Finding the Fourth Proportional to 554,560.30, 831,840.58 and 155,259.90

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Solution

The fourth proportional to 554,560.30, 831,840.58 and 155,259.90 is: 232,889.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,560.30 : 831,840.58 = 155,259.90 : x
  2. Step 2: Convert to fraction form
    554,560.30/831,840.58 = 155,259.90/x
  3. Step 3: Cross multiply
    554,560.30x = 831,840.58 × 155,259.90
  4. Step 4: Simplify right side
    554,560.30x = 129,151,485,266.74
  5. Step 5: Solve for x
    x = 129,151,485,266.74/554,560.30
  6. Step 6: Final answer
    x = 232,889.89

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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.