Home / 211,297.36-291,566.64-130,776.88

Finding the Fourth Proportional to 211,297.36, 291,566.64 and 130,776.88

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Solution

The fourth proportional to 211,297.36, 291,566.64 and 130,776.88 is: 180,457.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,297.36 : 291,566.64 = 130,776.88 : x
  2. Step 2: Convert to fraction form
    211,297.36/291,566.64 = 130,776.88/x
  3. Step 3: Cross multiply
    211,297.36x = 291,566.64 × 130,776.88
  4. Step 4: Simplify right side
    211,297.36x = 38,130,175,491.28
  5. Step 5: Solve for x
    x = 38,130,175,491.28/211,297.36
  6. Step 6: Final answer
    x = 180,457.42

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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.