Home / 210,981.63-291,154.95-115,494.36

Finding the Fourth Proportional to 210,981.63, 291,154.95 and 115,494.36

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Solution

The fourth proportional to 210,981.63, 291,154.95 and 115,494.36 is: 159,382.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,981.63 : 291,154.95 = 115,494.36 : x
  2. Step 2: Convert to fraction form
    210,981.63/291,154.95 = 115,494.36/x
  3. Step 3: Cross multiply
    210,981.63x = 291,154.95 × 115,494.36
  4. Step 4: Simplify right side
    210,981.63x = 33,626,754,611.08
  5. Step 5: Solve for x
    x = 33,626,754,611.08/210,981.63
  6. Step 6: Final answer
    x = 159,382.38

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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.