Home / 385,320.77-531,741.89-215,554.89

Finding the Fourth Proportional to 385,320.77, 531,741.89 and 215,554.89

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Solution

The fourth proportional to 385,320.77, 531,741.89 and 215,554.89 is: 297,465.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,320.77 : 531,741.89 = 215,554.89 : x
  2. Step 2: Convert to fraction form
    385,320.77/531,741.89 = 215,554.89/x
  3. Step 3: Cross multiply
    385,320.77x = 531,741.89 × 215,554.89
  4. Step 4: Simplify right side
    385,320.77x = 114,619,564,607.34
  5. Step 5: Solve for x
    x = 114,619,564,607.34/385,320.77
  6. Step 6: Final answer
    x = 297,465.32

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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.