Home / 554,384.40-831,569.28-133,656.90

Finding the Fourth Proportional to 554,384.40, 831,569.28 and 133,656.90

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Solution

The fourth proportional to 554,384.40, 831,569.28 and 133,656.90 is: 200,483.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,384.40 : 831,569.28 = 133,656.90 : x
  2. Step 2: Convert to fraction form
    554,384.40/831,569.28 = 133,656.90/x
  3. Step 3: Cross multiply
    554,384.40x = 831,569.28 × 133,656.90
  4. Step 4: Simplify right side
    554,384.40x = 111,144,972,100.03
  5. Step 5: Solve for x
    x = 111,144,972,100.03/554,384.40
  6. Step 6: Final answer
    x = 200,483.59

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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.