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Finding the Fourth Proportional to 341,705.40, 512,558.10 and 302,339.40

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Solution

The fourth proportional to 341,705.40, 512,558.10 and 302,339.40 is: 453,509.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,705.40 : 512,558.10 = 302,339.40 : x
  2. Step 2: Convert to fraction form
    341,705.40/512,558.10 = 302,339.40/x
  3. Step 3: Cross multiply
    341,705.40x = 512,558.10 × 302,339.40
  4. Step 4: Simplify right side
    341,705.40x = 154,966,508,419.14
  5. Step 5: Solve for x
    x = 154,966,508,419.14/341,705.40
  6. Step 6: Final answer
    x = 453,509.10

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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.