Home / 406,678.08-561,238.02-225,386.16

Finding the Fourth Proportional to 406,678.08, 561,238.02 and 225,386.16

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Solution

The fourth proportional to 406,678.08, 561,238.02 and 225,386.16 is: 311,045.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,678.08 : 561,238.02 = 225,386.16 : x
  2. Step 2: Convert to fraction form
    406,678.08/561,238.02 = 225,386.16/x
  3. Step 3: Cross multiply
    406,678.08x = 561,238.02 × 225,386.16
  4. Step 4: Simplify right side
    406,678.08x = 126,495,282,173.80
  5. Step 5: Solve for x
    x = 126,495,282,173.80/406,678.08
  6. Step 6: Final answer
    x = 311,045.24

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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.