Home / 248,865.80-373,298.70-209,985.80

Finding the Fourth Proportional to 248,865.80, 373,298.70 and 209,985.80

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Solution

The fourth proportional to 248,865.80, 373,298.70 and 209,985.80 is: 314,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,865.80 : 373,298.70 = 209,985.80 : x
  2. Step 2: Convert to fraction form
    248,865.80/373,298.70 = 209,985.80/x
  3. Step 3: Cross multiply
    248,865.80x = 373,298.70 × 209,985.80
  4. Step 4: Simplify right side
    248,865.80x = 78,387,426,158.46
  5. Step 5: Solve for x
    x = 78,387,426,158.46/248,865.80
  6. Step 6: Final answer
    x = 314,978.70

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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.