Home / 287,782.02-397,389.92-180,536.40

Finding the Fourth Proportional to 287,782.02, 397,389.92 and 180,536.40

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Solution

The fourth proportional to 287,782.02, 397,389.92 and 180,536.40 is: 249,297.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,782.02 : 397,389.92 = 180,536.40 : x
  2. Step 2: Convert to fraction form
    287,782.02/397,389.92 = 180,536.40/x
  3. Step 3: Cross multiply
    287,782.02x = 397,389.92 × 180,536.40
  4. Step 4: Simplify right side
    287,782.02x = 71,743,344,650.41
  5. Step 5: Solve for x
    x = 71,743,344,650.41/287,782.02
  6. Step 6: Final answer
    x = 249,297.52

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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.