Home / 302,519.40-453,779.10-218,538.60

Finding the Fourth Proportional to 302,519.40, 453,779.10 and 218,538.60

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Solution

The fourth proportional to 302,519.40, 453,779.10 and 218,538.60 is: 327,807.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,519.40 : 453,779.10 = 218,538.60 : x
  2. Step 2: Convert to fraction form
    302,519.40/453,779.10 = 218,538.60/x
  3. Step 3: Cross multiply
    302,519.40x = 453,779.10 × 218,538.60
  4. Step 4: Simplify right side
    302,519.40x = 99,168,249,223.26
  5. Step 5: Solve for x
    x = 99,168,249,223.26/302,519.40
  6. Step 6: Final answer
    x = 327,807.90

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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.