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Finding the Fourth Proportional to 302,495.40, 453,743.10 and 255,256.20

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Solution

The fourth proportional to 302,495.40, 453,743.10 and 255,256.20 is: 382,884.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,495.40 : 453,743.10 = 255,256.20 : x
  2. Step 2: Convert to fraction form
    302,495.40/453,743.10 = 255,256.20/x
  3. Step 3: Cross multiply
    302,495.40x = 453,743.10 × 255,256.20
  4. Step 4: Simplify right side
    302,495.40x = 115,820,739,482.22
  5. Step 5: Solve for x
    x = 115,820,739,482.22/302,495.40
  6. Step 6: Final answer
    x = 382,884.30

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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.