Home / 369,688.60-554,531.10-144,890.20

Finding the Fourth Proportional to 369,688.60, 554,531.10 and 144,890.20

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Solution

The fourth proportional to 369,688.60, 554,531.10 and 144,890.20 is: 217,334.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,688.60 : 554,531.10 = 144,890.20 : x
  2. Step 2: Convert to fraction form
    369,688.60/554,531.10 = 144,890.20/x
  3. Step 3: Cross multiply
    369,688.60x = 554,531.10 × 144,890.20
  4. Step 4: Simplify right side
    369,688.60x = 80,346,121,985.22
  5. Step 5: Solve for x
    x = 80,346,121,985.22/369,688.60
  6. Step 6: Final answer
    x = 217,334.59

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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.