Home / 210,927.30-291,080.16-115,440.15

Finding the Fourth Proportional to 210,927.30, 291,080.16 and 115,440.15

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Solution

The fourth proportional to 210,927.30, 291,080.16 and 115,440.15 is: 159,307.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,927.30 : 291,080.16 = 115,440.15 : x
  2. Step 2: Convert to fraction form
    210,927.30/291,080.16 = 115,440.15/x
  3. Step 3: Cross multiply
    210,927.30x = 291,080.16 × 115,440.15
  4. Step 4: Simplify right side
    210,927.30x = 33,602,337,332.42
  5. Step 5: Solve for x
    x = 33,602,337,332.42/210,927.30
  6. Step 6: Final answer
    x = 159,307.67

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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.