Home / 210,493.08-290,484.63-115,005.69

Finding the Fourth Proportional to 210,493.08, 290,484.63 and 115,005.69

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Solution

The fourth proportional to 210,493.08, 290,484.63 and 115,005.69 is: 158,710.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,493.08 : 290,484.63 = 115,005.69 : x
  2. Step 2: Convert to fraction form
    210,493.08/290,484.63 = 115,005.69/x
  3. Step 3: Cross multiply
    210,493.08x = 290,484.63 × 115,005.69
  4. Step 4: Simplify right side
    210,493.08x = 33,407,385,307.54
  5. Step 5: Solve for x
    x = 33,407,385,307.54/210,493.08
  6. Step 6: Final answer
    x = 158,710.14

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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.