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Finding the Fourth Proportional to 554,277.80, 831,417.40 and 133,553.67

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Solution

The fourth proportional to 554,277.80, 831,417.40 and 133,553.67 is: 200,330.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,277.80 : 831,417.40 = 133,553.67 : x
  2. Step 2: Convert to fraction form
    554,277.80/831,417.40 = 133,553.67/x
  3. Step 3: Cross multiply
    554,277.80x = 831,417.40 × 133,553.67
  4. Step 4: Simplify right side
    554,277.80x = 111,038,845,071.86
  5. Step 5: Solve for x
    x = 111,038,845,071.86/554,277.80
  6. Step 6: Final answer
    x = 200,330.67

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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.