Home / 369,780.25-554,985.11-145,297.66

Finding the Fourth Proportional to 369,780.25, 554,985.11 and 145,297.66

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Solution

The fourth proportional to 369,780.25, 554,985.11 and 145,297.66 is: 218,070.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,780.25 : 554,985.11 = 145,297.66 : x
  2. Step 2: Convert to fraction form
    369,780.25/554,985.11 = 145,297.66/x
  3. Step 3: Cross multiply
    369,780.25x = 554,985.11 × 145,297.66
  4. Step 4: Simplify right side
    369,780.25x = 80,638,037,817.84
  5. Step 5: Solve for x
    x = 80,638,037,817.84/369,780.25
  6. Step 6: Final answer
    x = 218,070.16

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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.