Home / 302,477.28-453,681.36-80,878.56

Finding the Fourth Proportional to 302,477.28, 453,681.36 and 80,878.56

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Solution

The fourth proportional to 302,477.28, 453,681.36 and 80,878.56 is: 121,308.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,477.28 : 453,681.36 = 80,878.56 : x
  2. Step 2: Convert to fraction form
    302,477.28/453,681.36 = 80,878.56/x
  3. Step 3: Cross multiply
    302,477.28x = 453,681.36 × 80,878.56
  4. Step 4: Simplify right side
    302,477.28x = 36,693,095,095.64
  5. Step 5: Solve for x
    x = 36,693,095,095.64/302,477.28
  6. Step 6: Final answer
    x = 121,308.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.