Home / 287,747.04-397,341.60-180,501.40

Finding the Fourth Proportional to 287,747.04, 397,341.60 and 180,501.40

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Solution

The fourth proportional to 287,747.04, 397,341.60 and 180,501.40 is: 249,249.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,747.04 : 397,341.60 = 180,501.40 : x
  2. Step 2: Convert to fraction form
    287,747.04/397,341.60 = 180,501.40/x
  3. Step 3: Cross multiply
    287,747.04x = 397,341.60 × 180,501.40
  4. Step 4: Simplify right side
    287,747.04x = 71,720,715,078.24
  5. Step 5: Solve for x
    x = 71,720,715,078.24/287,747.04
  6. Step 6: Final answer
    x = 249,249.18

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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.