Home / 389,774.16-537,888.04-210,926.16

Finding the Fourth Proportional to 389,774.16, 537,888.04 and 210,926.16

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Solution

The fourth proportional to 389,774.16, 537,888.04 and 210,926.16 is: 291,077.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,774.16 : 537,888.04 = 210,926.16 : x
  2. Step 2: Convert to fraction form
    389,774.16/537,888.04 = 210,926.16/x
  3. Step 3: Cross multiply
    389,774.16x = 537,888.04 × 210,926.16
  4. Step 4: Simplify right side
    389,774.16x = 113,454,658,787.13
  5. Step 5: Solve for x
    x = 113,454,658,787.13/389,774.16
  6. Step 6: Final answer
    x = 291,077.94

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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.