Home / 382,895.28-528,386.36-213,125.76

Finding the Fourth Proportional to 382,895.28, 528,386.36 and 213,125.76

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Solution

The fourth proportional to 382,895.28, 528,386.36 and 213,125.76 is: 294,108.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,895.28 : 528,386.36 = 213,125.76 : x
  2. Step 2: Convert to fraction form
    382,895.28/528,386.36 = 213,125.76/x
  3. Step 3: Cross multiply
    382,895.28x = 528,386.36 × 213,125.76
  4. Step 4: Simplify right side
    382,895.28x = 112,612,744,548.63
  5. Step 5: Solve for x
    x = 112,612,744,548.63/382,895.28
  6. Step 6: Final answer
    x = 294,108.47

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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.