Home / 287,746.02-397,340.24-180,500.40

Finding the Fourth Proportional to 287,746.02, 397,340.24 and 180,500.40

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Solution

The fourth proportional to 287,746.02, 397,340.24 and 180,500.40 is: 249,247.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,746.02 : 397,340.24 = 180,500.40 : x
  2. Step 2: Convert to fraction form
    287,746.02/397,340.24 = 180,500.40/x
  3. Step 3: Cross multiply
    287,746.02x = 397,340.24 × 180,500.40
  4. Step 4: Simplify right side
    287,746.02x = 71,720,072,256.10
  5. Step 5: Solve for x
    x = 71,720,072,256.10/287,746.02
  6. Step 6: Final answer
    x = 249,247.83

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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.