Home / 320,346.50-480,547.42-83,689.18

Finding the Fourth Proportional to 320,346.50, 480,547.42 and 83,689.18

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Solution

The fourth proportional to 320,346.50, 480,547.42 and 83,689.18 is: 125,541.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,346.50 : 480,547.42 = 83,689.18 : x
  2. Step 2: Convert to fraction form
    320,346.50/480,547.42 = 83,689.18/x
  3. Step 3: Cross multiply
    320,346.50x = 480,547.42 × 83,689.18
  4. Step 4: Simplify right side
    320,346.50x = 40,216,618,120.32
  5. Step 5: Solve for x
    x = 40,216,618,120.32/320,346.50
  6. Step 6: Final answer
    x = 125,541.00

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1.5x scale

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.