Home / 278,386.02-384,151.59-163,669.38

Finding the Fourth Proportional to 278,386.02, 384,151.59 and 163,669.38

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Solution

The fourth proportional to 278,386.02, 384,151.59 and 163,669.38 is: 225,851.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,386.02 : 384,151.59 = 163,669.38 : x
  2. Step 2: Convert to fraction form
    278,386.02/384,151.59 = 163,669.38/x
  3. Step 3: Cross multiply
    278,386.02x = 384,151.59 × 163,669.38
  4. Step 4: Simplify right side
    278,386.02x = 62,873,852,561.31
  5. Step 5: Solve for x
    x = 62,873,852,561.31/278,386.02
  6. Step 6: Final answer
    x = 225,851.33

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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.