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Finding the Fourth Proportional to 328,973.40, 493,460.10 and 282,317.40

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Solution

The fourth proportional to 328,973.40, 493,460.10 and 282,317.40 is: 423,476.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,973.40 : 493,460.10 = 282,317.40 : x
  2. Step 2: Convert to fraction form
    328,973.40/493,460.10 = 282,317.40/x
  3. Step 3: Cross multiply
    328,973.40x = 493,460.10 × 282,317.40
  4. Step 4: Simplify right side
    328,973.40x = 139,312,372,435.74
  5. Step 5: Solve for x
    x = 139,312,372,435.74/328,973.40
  6. Step 6: Final answer
    x = 423,476.10

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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.