Home / 328,356.02-492,561.98-103,656.35

Finding the Fourth Proportional to 328,356.02, 492,561.98 and 103,656.35

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Solution

The fourth proportional to 328,356.02, 492,561.98 and 103,656.35 is: 155,493.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,356.02 : 492,561.98 = 103,656.35 : x
  2. Step 2: Convert to fraction form
    328,356.02/492,561.98 = 103,656.35/x
  3. Step 3: Cross multiply
    328,356.02x = 492,561.98 × 103,656.35
  4. Step 4: Simplify right side
    328,356.02x = 51,057,176,995.57
  5. Step 5: Solve for x
    x = 51,057,176,995.57/328,356.02
  6. Step 6: Final answer
    x = 155,493.35

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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.