Home / 313,583.39-432,316.60-215,463.63

Finding the Fourth Proportional to 313,583.39, 432,316.60 and 215,463.63

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Solution

The fourth proportional to 313,583.39, 432,316.60 and 215,463.63 is: 297,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,583.39 : 432,316.60 = 215,463.63 : x
  2. Step 2: Convert to fraction form
    313,583.39/432,316.60 = 215,463.63/x
  3. Step 3: Cross multiply
    313,583.39x = 432,316.60 × 215,463.63
  4. Step 4: Simplify right side
    313,583.39x = 93,148,503,945.26
  5. Step 5: Solve for x
    x = 93,148,503,945.26/313,583.39
  6. Step 6: Final answer
    x = 297,045.40

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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.