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Finding the Fourth Proportional to 346,396.96, 478,018.48 and 193,430.88

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Solution

The fourth proportional to 346,396.96, 478,018.48 and 193,430.88 is: 266,929.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,396.96 : 478,018.48 = 193,430.88 : x
  2. Step 2: Convert to fraction form
    346,396.96/478,018.48 = 193,430.88/x
  3. Step 3: Cross multiply
    346,396.96x = 478,018.48 × 193,430.88
  4. Step 4: Simplify right side
    346,396.96x = 92,463,535,242.66
  5. Step 5: Solve for x
    x = 92,463,535,242.66/346,396.96
  6. Step 6: Final answer
    x = 266,929.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.