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Finding the Fourth Proportional to 355,193.69, 530,199.47 and 310,352.90

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Solution

The fourth proportional to 355,193.69, 530,199.47 and 310,352.90 is: 463,265.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,193.69 : 530,199.47 = 310,352.90 : x
  2. Step 2: Convert to fraction form
    355,193.69/530,199.47 = 310,352.90/x
  3. Step 3: Cross multiply
    355,193.69x = 530,199.47 × 310,352.90
  4. Step 4: Simplify right side
    355,193.69x = 164,548,938,890.20
  5. Step 5: Solve for x
    x = 164,548,938,890.20/355,193.69
  6. Step 6: Final answer
    x = 463,265.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.