Home / 291,355.07-402,041.01-214,915.46

Finding the Fourth Proportional to 291,355.07, 402,041.01 and 214,915.46

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Solution

The fourth proportional to 291,355.07, 402,041.01 and 214,915.46 is: 296,561.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,355.07 : 402,041.01 = 214,915.46 : x
  2. Step 2: Convert to fraction form
    291,355.07/402,041.01 = 214,915.46/x
  3. Step 3: Cross multiply
    291,355.07x = 402,041.01 × 214,915.46
  4. Step 4: Simplify right side
    291,355.07x = 86,404,826,592.81
  5. Step 5: Solve for x
    x = 86,404,826,592.81/291,355.07
  6. Step 6: Final answer
    x = 296,561.95

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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.