Home / 210,935.30-291,088.32-115,440.84

Finding the Fourth Proportional to 210,935.30, 291,088.32 and 115,440.84

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Solution

The fourth proportional to 210,935.30, 291,088.32 and 115,440.84 is: 159,307.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,935.30 : 291,088.32 = 115,440.84 : x
  2. Step 2: Convert to fraction form
    210,935.30/291,088.32 = 115,440.84/x
  3. Step 3: Cross multiply
    210,935.30x = 291,088.32 × 115,440.84
  4. Step 4: Simplify right side
    210,935.30x = 33,603,480,174.99
  5. Step 5: Solve for x
    x = 33,603,480,174.99/210,935.30
  6. Step 6: Final answer
    x = 159,307.05

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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.