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Finding the Fourth Proportional to 154,421.84, 232,670.90 and 139,647.44

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Solution

The fourth proportional to 154,421.84, 232,670.90 and 139,647.44 is: 210,409.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,421.84 : 232,670.90 = 139,647.44 : x
  2. Step 2: Convert to fraction form
    154,421.84/232,670.90 = 139,647.44/x
  3. Step 3: Cross multiply
    154,421.84x = 232,670.90 × 139,647.44
  4. Step 4: Simplify right side
    154,421.84x = 32,491,895,547.50
  5. Step 5: Solve for x
    x = 32,491,895,547.50/154,421.84
  6. Step 6: Final answer
    x = 210,409.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.