Home / 384,154.40-530,146.32-214,420.16

Finding the Fourth Proportional to 384,154.40, 530,146.32 and 214,420.16

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Solution

The fourth proportional to 384,154.40, 530,146.32 and 214,420.16 is: 295,907.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,154.40 : 530,146.32 = 214,420.16 : x
  2. Step 2: Convert to fraction form
    384,154.40/530,146.32 = 214,420.16/x
  3. Step 3: Cross multiply
    384,154.40x = 530,146.32 × 214,420.16
  4. Step 4: Simplify right side
    384,154.40x = 113,674,058,757.81
  5. Step 5: Solve for x
    x = 113,674,058,757.81/384,154.40
  6. Step 6: Final answer
    x = 295,907.22

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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.