Home / 212,185.28-292,810.08-115,386.40

Finding the Fourth Proportional to 212,185.28, 292,810.08 and 115,386.40

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Solution

The fourth proportional to 212,185.28, 292,810.08 and 115,386.40 is: 159,230.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,185.28 : 292,810.08 = 115,386.40 : x
  2. Step 2: Convert to fraction form
    212,185.28/292,810.08 = 115,386.40/x
  3. Step 3: Cross multiply
    212,185.28x = 292,810.08 × 115,386.40
  4. Step 4: Simplify right side
    212,185.28x = 33,786,301,014.91
  5. Step 5: Solve for x
    x = 33,786,301,014.91/212,185.28
  6. Step 6: Final answer
    x = 159,230.18

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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.