Home / 361,415.04-498,739.28-208,459.50

Finding the Fourth Proportional to 361,415.04, 498,739.28 and 208,459.50

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Solution

The fourth proportional to 361,415.04, 498,739.28 and 208,459.50 is: 287,666.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,415.04 : 498,739.28 = 208,459.50 : x
  2. Step 2: Convert to fraction form
    361,415.04/498,739.28 = 208,459.50/x
  3. Step 3: Cross multiply
    361,415.04x = 498,739.28 × 208,459.50
  4. Step 4: Simplify right side
    361,415.04x = 103,966,940,939.16
  5. Step 5: Solve for x
    x = 103,966,940,939.16/361,415.04
  6. Step 6: Final answer
    x = 287,666.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.