Home / 292,715.40-438,806.88-105,683.16

Finding the Fourth Proportional to 292,715.40, 438,806.88 and 105,683.16

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Solution

The fourth proportional to 292,715.40, 438,806.88 and 105,683.16 is: 158,428.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,715.40 : 438,806.88 = 105,683.16 : x
  2. Step 2: Convert to fraction form
    292,715.40/438,806.88 = 105,683.16/x
  3. Step 3: Cross multiply
    292,715.40x = 438,806.88 × 105,683.16
  4. Step 4: Simplify right side
    292,715.40x = 46,374,497,708.14
  5. Step 5: Solve for x
    x = 46,374,497,708.14/292,715.40
  6. Step 6: Final answer
    x = 158,428.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.