Home / 217,547.22-299,655.81-153,775.38

Finding the Fourth Proportional to 217,547.22, 299,655.81 and 153,775.38

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Solution

The fourth proportional to 217,547.22, 299,655.81 and 153,775.38 is: 211,814.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,547.22 : 299,655.81 = 153,775.38 : x
  2. Step 2: Convert to fraction form
    217,547.22/299,655.81 = 153,775.38/x
  3. Step 3: Cross multiply
    217,547.22x = 299,655.81 × 153,775.38
  4. Step 4: Simplify right side
    217,547.22x = 46,079,686,051.96
  5. Step 5: Solve for x
    x = 46,079,686,051.96/217,547.22
  6. Step 6: Final answer
    x = 211,814.64

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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.