Home / 280,837.04-421,312.02-103,344.98

Finding the Fourth Proportional to 280,837.04, 421,312.02 and 103,344.98

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Solution

The fourth proportional to 280,837.04, 421,312.02 and 103,344.98 is: 155,038.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,837.04 : 421,312.02 = 103,344.98 : x
  2. Step 2: Convert to fraction form
    280,837.04/421,312.02 = 103,344.98/x
  3. Step 3: Cross multiply
    280,837.04x = 421,312.02 × 103,344.98
  4. Step 4: Simplify right side
    280,837.04x = 43,540,482,280.66
  5. Step 5: Solve for x
    x = 43,540,482,280.66/280,837.04
  6. Step 6: Final answer
    x = 155,038.25

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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.