Home / 287,389.16-396,688.96-185,417.48

Finding the Fourth Proportional to 287,389.16, 396,688.96 and 185,417.48

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Solution

The fourth proportional to 287,389.16, 396,688.96 and 185,417.48 is: 255,935.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,389.16 : 396,688.96 = 185,417.48 : x
  2. Step 2: Convert to fraction form
    287,389.16/396,688.96 = 185,417.48/x
  3. Step 3: Cross multiply
    287,389.16x = 396,688.96 × 185,417.48
  4. Step 4: Simplify right side
    287,389.16x = 73,553,067,307.02
  5. Step 5: Solve for x
    x = 73,553,067,307.02/287,389.16
  6. Step 6: Final answer
    x = 255,935.43

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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.