Home / 320,985.65-442,922.51-185,018.04

Finding the Fourth Proportional to 320,985.65, 442,922.51 and 185,018.04

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Solution

The fourth proportional to 320,985.65, 442,922.51 and 185,018.04 is: 255,303.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,985.65 : 442,922.51 = 185,018.04 : x
  2. Step 2: Convert to fraction form
    320,985.65/442,922.51 = 185,018.04/x
  3. Step 3: Cross multiply
    320,985.65x = 442,922.51 × 185,018.04
  4. Step 4: Simplify right side
    320,985.65x = 81,948,655,134.63
  5. Step 5: Solve for x
    x = 81,948,655,134.63/320,985.65
  6. Step 6: Final answer
    x = 255,303.17

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1.5x scale

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.