Home / 378,116.02-521,776.65-216,984.34

Finding the Fourth Proportional to 378,116.02, 521,776.65 and 216,984.34

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Solution

The fourth proportional to 378,116.02, 521,776.65 and 216,984.34 is: 299,424.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,116.02 : 521,776.65 = 216,984.34 : x
  2. Step 2: Convert to fraction form
    378,116.02/521,776.65 = 216,984.34/x
  3. Step 3: Cross multiply
    378,116.02x = 521,776.65 × 216,984.34
  4. Step 4: Simplify right side
    378,116.02x = 113,217,362,027.66
  5. Step 5: Solve for x
    x = 113,217,362,027.66/378,116.02
  6. Step 6: Final answer
    x = 299,424.93

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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.