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Finding the Fourth Proportional to 342,137.61, 513,239.21 and 152,590.32

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Solution

The fourth proportional to 342,137.61, 513,239.21 and 152,590.32 is: 228,900.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,137.61 : 513,239.21 = 152,590.32 : x
  2. Step 2: Convert to fraction form
    342,137.61/513,239.21 = 152,590.32/x
  3. Step 3: Cross multiply
    342,137.61x = 513,239.21 × 152,590.32
  4. Step 4: Simplify right side
    342,137.61x = 78,315,334,527.50
  5. Step 5: Solve for x
    x = 78,315,334,527.50/342,137.61
  6. Step 6: Final answer
    x = 228,900.10

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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.